Glebocarcinus oregonensis: Difference between revisions
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| superfamilia = [[Cancroidea]] |
| superfamilia = [[Cancroidea]] |
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| familia = [[Cancridae]] |
| familia = [[Cancridae]] |
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| genus = ''[[Cancer]]'' |
| genus = ''[[Cancer (genus)|Cancer]]'' |
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| species = '''''C. oregonensis''''' |
| species = '''''C. oregonensis''''' |
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| binomial = ''Cancer oregonensis'' |
| binomial = ''Cancer oregonensis'' |
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Revision as of 02:46, 28 January 2009
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| Cancer oregonensis | |
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| Species: | C. oregonensis
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| Binomial name | |
| Cancer oregonensis | |
Characteristics
Cancer oregonensis, commonly known as the pygmy rock crab, are usually red/brown but this may vary; their legs have many setae (hair); width of the carapace gets up to about 5 cm; tips of cheliped are black and the dactyle of the cheliped doesn’t have any spiny ridges; the carapace is widest at the 7th or 8th lateral tooth; the dorsal surface is covered with small tubercles (rounded projections), males have longer chelipad’s than females.
Habitat
They are found mostly in crevasses, holes (dead barnacles) and under rocks. They are commonly found in the intertidal zone but can live in depths of up 436 meters underwater.
Feeding
They are nocturnal feeders, feeding mostly on small barnacles, snails, bivalves, worms, green algae and Japanese oysters.
Predators
Pacific Cod, River otters and red rock crab.
Breeding
Breeding occurs during the summer, for the Puget Sound females are ovigerous from November to April/May. It is not unusual to find harems consisting of 1 male with as many as 7 females. Males may carry females that are molting and continue them until their new shell hardens, for mating occurs after females molt.